- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 263/18 - SeparationPurificationStabilisationUse of additives
Patent holdings for IPC class C07C 263/18
Total number of patents in this class: 52
10-year publication summary
|
0
|
2
|
2
|
4
|
3
|
1
|
5
|
1
|
8
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 20514 |
6 |
| Covestro Deutschland AG | 2695 |
6 |
| Asahi Kasei Kabushiki Kaisha | 2596 |
5 |
| Showa Denko K.K. | 2311 |
4 |
| Asahi Kasei Chemicals Corporation | 698 |
4 |
| Nippon Polyurethane Industry Co., Ltd. | 97 |
3 |
| Wanhua Chemical Group Co., Ltd. | 307 |
3 |
| BASF (China) Co., Ltd. | 822 |
3 |
| Hanwha Solutions Corporation | 773 |
3 |
| Hanwha Chemical Corporation | 323 |
2 |
| SK Pucore Co., Ltd. | 39 |
2 |
| Evonik Degussa GmbH | 1555 |
1 |
| Mitsui Chemicals Polyurethanes, Inc. | 22 |
1 |
| Construction Research & Technology GmbH | 649 |
1 |
| Huntsman International LLC | 715 |
1 |
| KS Laboratories Co., Ltd. | 15 |
1 |
| Lanxess Deutschland GmbH | 1122 |
1 |
| SKC Co., Ltd. | 320 |
1 |
| University-industry Cooperation Group of Kyung Hee University | 1175 |
1 |
| Wanhua Chemical (Ningbo) Co., Ltd. | 79 |
1 |
| Other owners | 2 |